中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 新疆天文台
  3. 研究单元未命名
  4. 光学天文与技术应用研究室
  5. 变星研究团组
Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203

文献类型：期刊论文

作者Ma, Shuguo1; Luo, A-Li1,5; Wei, Peng4; Lv, Chenglong4; Yang, Ming3; Zuo, Fang1; Cui, Yingzhen1; Li, Shuo1,5; Meng, Gang2; Hou, Wen1
刊名ASTROPHYSICAL JOURNAL
出版日期2025-07-20
卷号988期号:1页码:37
ISSN号0004-637X
DOI10.3847/1538-4357/add406
产权排序3
英文摘要In this research, we conducted systematic photometric, spectroscopic, and theoretical modeling analyses of two 6 Scuti stars-KIC 12602250 and KIC 5768203-that pulsate only in radial modes. We collected their relevant photometric and spectroscopic parameters from multiple catalogs and estimated the absolute luminosities of both stars. Using high-precision time-series data from Kepler and TESS, we performed in-depth analysis of the periodic modulation in pulsation frequency phases, successfully determining the orbital periods and companion mass distribution ranges for these binary systems. Additionally, we thoroughly investigated the temporal evolution characteristics of pulsation periods and amplitudes. Based on calculations using Modules for Experiments in Stellar Astrophysics stellar evolution models, we determined that KIC 12602250 has a mass of M = 1.66(+ 0.05) (-0.07) M(circle dot )with metallicity Z = 0.039 (+ 0.018) (-0.010) and is currently in the main-sequence evolutionary stage. For KIC 5768203, we derived precise parameters through rigorous constraints: mass M = 2.09 +/- 0.01M(circle dot ), metallicity Z = 0.024 +/- 0.003, and radius R = 3.19 +/- 0.01R(circle dot ). Theoretical models reveal that this star has already crossed the first main-sequence turn-off point and entered the late-main-sequence evolutionary stage. Through comparative studies with typical High Amplitude 6 Scuti stars, we believe that the primary reason for the low radial pulsation amplitudes in these two stars likely stems from their specific evolutionary states.
WOS关键词A-TYPE STARS ; PERIOD CHANGES ; ROTATIONAL VELOCITIES ; CONVECTIVE BOUNDARIES ; KEPLER TARGETS ; RED GIANTS ; SCT STAR ; GAIA ; MODULES ; MESA
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12003060] ; National Natural Science Foundation of China[2019YFA0405502] ; National Key R&D Program of China[2022YFE0126200] ; National Key R&D Program of China[2023TSYCLJ0053] ; National Key R&D program of China for Intergovernmental Scientific and Technological Innovation Cooperation Project ; Chinese Academy of Sciences (CAS) Light of West China Program[2020D01B59] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) ; National Development and Reform Commission ; Chinese Academy of Sciences ; People's Government of Yunnan Province
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001527551100001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D program of China for Intergovernmental Scientific and Technological Innovation Cooperation Project ; Chinese Academy of Sciences (CAS) Light of West China Program ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) ; National Development and Reform Commission ; Chinese Academy of Sciences ; People's Government of Yunnan Province
源URL[http://ir.xao.ac.cn/handle/45760611-7/7910]  
专题光学天文与技术应用研究室_变星研究团组
通讯作者Ma, Shuguo; Luo, A-Li
作者单位1.Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
3.Tongji Univ, Coll Surveying & Geoinformat, Shanghai 200092, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Shuguo,Luo, A-Li,Wei, Peng,et al. Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203[J]. ASTROPHYSICAL JOURNAL,2025,988(1):37.
APA Ma, Shuguo.,Luo, A-Li.,Wei, Peng.,Lv, Chenglong.,Yang, Ming.,...&Qu, Cai-Xia.(2025).Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203.ASTROPHYSICAL JOURNAL,988(1),37.
MLA Ma, Shuguo,et al."Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203".ASTROPHYSICAL JOURNAL 988.1(2025):37.

入库方式： OAI收割

来源：新疆天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。